# File lib/flexmock/test_unit_integration.rb, line 50
50:     def assert_block(msg, &block)
51:       unless yield
52:         msg = msg.call if msg.is_a?(Proc)
53:         super(msg) { false }
54:       end
55:     rescue assertion_failed_error => ex
56:       ex.message.sub!(/Expected block to return true value./,'')
57:       raise ex
58:     end